Genus: Scolymus
Genus description:
Spiny annual to perennial herbs. Stems solitary, branched. Leaves pinnatifid. Capitula few to numerous. Involucral bracts in several rows. Ligules yellow. Achenes dorsaly compressed, tightly enclosed in and adnate to the ovate, slightly winged, deciduous receptacular scales; pappus absent or of a few rigid hairs.All species occur on waste ground or in other dry, open habitats.
Species and images:
